Phylogeography of Aedes (Stegomyia) aegypti (L.) and Aedes (Stegomyia) albopictus (Skuse) (Diptera: Culicidae) based on mitochondrial DNA variations

Genetical Research - Tập 86 Số 1 - Trang 1-11 - 2005
Laurence Mousson1, Catherine Dauga2, Thomas Garrigues1, Francis Schaffner3, Marie Vazeille1, Anna‐Bella Failloux1,4
1Insectes et Maladies Infectieuses (formerly Ecologie des Systèmes Vectoriels), Institut Pasteur, 25–28 rue du Dr Roux, 75724 Paris cedex 15, France
2Plate Forme 4 – Intégration et Analyse Génomiques, Institut Pasteur, 25–28 rue du Dr Roux, 75724 Paris cedex 15, France
3EID Méditerranée, 165 avenue Paul-Rimbaud, 34184 Montpellier cedex 4, France
4Present address: UP Génétique moléculaire des Bunyaviridés, Institut Pasteur, 25–28 rue du Dr Roux, 75724 Paris cedex 15, France

Tóm tắt

Aedes (Stegomyia) aegypti (L.) and Aedes (Stegomyia) albopictus (Skuse) are the most important vectors of the dengue and yellow-fever viruses. Both took advantage of trade developments to spread throughout the tropics from their native area: A. aegypti originated from Africa and A. albopictus from South-East Asia. We investigated the relationships between A. aegypti and A. albopictus mosquitoes based on three mitochondrial-DNA genes (cytochrome b, cytochrome oxidase I and NADH dehydrogenase subunit 5). Little genetic variation was observed for A. albopictus, probably owing to the recent spreading of the species via human activities. For A. aegypti, most populations from South America were found to be genetically similar to populations from South-East Asia (Thailand and Vietnam), except for one sample from Boa Vista (northern Amazonia), which was more closely related to samples from Africa (Guinea and Ivory Coast). This suggests that African populations of A. aegypti introduced during the slave trade have persisted in Boa Vista, resisting eradication campaigns.

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Genetical Research

Tập 86 Số 1

1-11

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